* Document that WebP constants are only defined in PHP 7.1+.
* Correct the `$filename` parameter type in `wp_get_webp_info()`.
* Use a consistent message when skipping tests due to the lack of WebP support.
* Remove unnecessary `else` branches after `markTestSkipped()`.
* Replace `assertEquals()` with more appropriate assertions.
Follow-up to [50810].
See #35725.
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Add support for uploading, editing and saving WebP images when supported by the server.
Add 'image/webp' to supported mime types. Correctly identify WebP images and sizes even when PHP doesn't support WebP. Resize uploaded WebP files (when supported) and use for front end markup.
Props markoheijne, blobfolio, Clorith, joemcgill, atjn, desrosj, spacedmonkey, marylauc, mikeschroder, hellofromtonya, flixos90.
Fixes#35725.
Built from https://develop.svn.wordpress.org/trunk@50810
git-svn-id: http://core.svn.wordpress.org/trunk@50419 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improve the check for sourceless or dimensionless media when determining if the lazy loading attribute should be added to iframes and images. Never include the lazy loading attribute on embeds of WordPress posts as the iframe is initially hidden.
Including `loading="lazy"` on initially hidden iframes and images can prevent the media from loading in some browsers.
Props adamsilverstein, fabianpimminger, flixos90, johnbillion, jonkastonka, joyously, peterwilsoncc, SergeyBiryukov, SirStuey, swissspidy.
Fixes#52768.
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In the wrapper function `wp_getimagesize()` check if the second parameter was passed before sending it to the PHP function `getimagesize()`.
The PHP function has a different execution path depending on the number of parameters passed, this ensures the wrapper function follows the appropriate path.
Follow up to [50552].
Props azaozz, hellofromtonya, Mista-Flo, peterwilsoncc, rinatkhaziev, RogerTheriault, SergeyBiryukov, terriann, whyisjake.
Fixes#52826.
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When using the `adjacent_image_link()` function there is a condition that will return a linked image. Previously, the returned image was sent without alt attributes.
Now, `adjacent_image_link()` will include alt attributes of the image's title when an image is returned.
Props joedolson, Mista-Flo, sabernhardt.
Fixes#52387.
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Previously, we used `DIR_TESTDATA` to determine if a test should skip a newly silenced error in `wp_getimagesize()`.
We are now using `WP_RUN_CORE_TESTS` instead for consistency.
Props hellofromTonya, SergeyBiryukov.
See #49889.
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Previously, all logic utilizing `getimagesize()` was supressing errors making it difficult to debug usage of the function.
A new `wp_getimagesize()` function has been added to allow the errors to no longer be suppressed when `WP_DEBUG` is enabled.
Props Howdy_McGee, SergeyBiryukov, mukesh27, davidbaumwald, noisysocks, hellofromTonya.
Fixes#49889.
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This adds a new filter, `wp_image_src_get_dimensions` to the `wp_image_src_get_dimensions()` function to correct the dimensions returned for a file whenever WordPress isn't able to correctly get the dimensions from attachment metadata.
Fixes#51865.
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* Expands the capabilities of `wp_filter_content_tags()` to add the attribute to iframe tags if enabled.
* Modifies the default behavior of `wp_lazy_loading_enabled()` so that it returns `true` for `iframe` tags.
* Introduces a `wp_iframe_tag_add_loading_attr()` function.
* Introduces a `wp_iframe_tag_add_loading_attr` filter.
Like for images, the attribute is only added to iframes which have both `width` and `height` specified (see related #50367).
Props azaozz, flixos90, westonruter.
Fixes#50756.
Built from https://develop.svn.wordpress.org/trunk@49808
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Using the canonical function name for PHP functions is strongly recommended, as aliases may be deprecated or removed without (much) warning.
This replaces all uses of the following:
* `join()` with `implode()`
* `sizeof()` with `count()`
* `is_writeable()` with `is_writable()`
* `doubleval()` with a `(float)` cast
In part, this is a follow-up to #47746.
Props jrf.
See #50767.
Built from https://develop.svn.wordpress.org/trunk@49193
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In PHP 8, the GD extension uses `GdImage` objects instead of resources for its underlying data structures.
This updates the existing `is_resource()` calls for image resources in core to accomodate for `GdImage` instances as well.
Props ayeshrajans, jrf.
Fixes#50833.
Built from https://develop.svn.wordpress.org/trunk@48798
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